norton



E. NORTON, DECD.

,L. E. NORTON. EXECUTRIX.

JAR CLOSURE.

APPLICATION FILED JUN 4. 1915.

Patented July 1, 1919.

' man STATES Parana enema.

EDWIN NORTON, DECEASED, BY LUCY E. NORTON, EXECU'IRIX, OF NEW YORK, N.Y.,

ASSIGNOR TO PERFECT VACUUM CANNING' COMPANY, OF NEW YORK, N. Y., A COR-PORATION OF'MAINTE.

\J'AR-CIDSURE,

Specification of Letters'latent.

Patented July 1, 1919.

To all whom it may concern:

Be it known that I LUCY E. Non'ron, a

citizen of the United states, and a resident of New York city, county ofNew York, and State of New York, executrix of the last will andtestament of EDWIN NORTON; deceased, (as by reference to theduly-certified letters testamentary hereto attached will more fullyappear,) am in possession of new and useful Imprdvements inJar-Closures, of whlch the said EDWIN NORTON was the inventor, and ofwhich the following is a specification.

The invention relates to new and useful improvements in jar closures"and more par ticularly to a jar closure whereln the cover is clamped tothe mouth of the jar by a clamping ring. I

An object of the 1I1V6Ilt1011'18 provide a jar closure wherein a clampmgr ng may be used to temporaril hold the parts in assembled position anwherein sald clamping ring'may'be operated upon by suitable tools forsealing the closure to the ar.-

In the drawings-which show byway of illustration one embodiment 'of, themvention':-

Figure 1 is a vertical sectional view showring curled to sealthe closureto the jar.

The invention consists generally in prov1ding a ar having a flange or lito which a sp it ring is adapted to be attac ed, said r1n having aninturned part adapted to exten underneath the flange. Directly on top ofthe mouth of the jar-is a paper lining and On top of this paper liningis a metal cap having a downwardly projecting flange adapted to beprovided with a sealing material which is forced against the taperedouter wall of the mouth of the jar. Outside of this metal cap is theclamping rin and after the parts have been assemble the outer edge ofthe clamping ring is curled in order to forcethe metal cap into contactwith the jar and the tapered wall with the sealing material thereon,against the 'side wall of the jar.

Referring more in detail to the drawings: The jar is shown at 1 and thisjar has a wide open mouth 2. At the outer wall of the mouth of the jaris a projecting flange 3 having a shoulder 4. The jar mouth is closedfirst by a lining '5 which is practically in the form of a paper diskand this paper disk may be treated in order to make the same water proofif desired. Above the paper disk 5 is a metal cap 6 which is closed atits upper end as at 7 and is provided with a downwardly projecting coneshaped flange 8. The inner wall of this flange is coated with a plasticsealing material as at 9. The outer wall' of the jar is tapered as at'10 to conform to the tapered wall 9 of the metal 6. The metal capandpaper lining are the tongue is bent back as indicated in dotted linesin Fig. 1 to lock the split sections of the ring together. This ring istapered toconform in a general way to the tapered wall of the metal cap6. At the lower edge ofthe ring'there is an inwardly projecting flange14: while at the upper edge of the ring there is a vertical portlon 15.

In the applying of the closureto the jar the paper disk or liningt5 isfirst placed on the mouth of the jar a er which the metal cap 6 is laidover the lining. The split ring 11 with its sections separated is thenplaced on the jar and the tongue 12 is bent back in order to lock thesplit sections together. When the ring is placed on the jar the inwardlyturned part 14 of the ring extends underneath the shoulder 4 at themouth of the jar. After the parts have been thus assembled the jar maybe placed in a vacuum chamber and the metal cap and lining-and ring willrest so lightly on the mouth of the jar that the air can be withdrawnfrom the jar andthe contents uum. While the jar is st1ll inthe vacuumchamber asuitable curling head may be .applied to the flange 15 of thesecuring ring 11 so as to roll or curl the flange as indicated at 16 inFig. 2. This rolling of the flange down onto the upper fiat-ledge 17 ofthe cap 6 will press the cap firmly down onto the mouth of the jar. Theinwardly projecting portion 14 holds the rim so that the rolling of thecurl will cause this clamping action.

@The cap is preferably so proportioned that when it is crowded onto themouth of the jar the scaling material indicated at 9 will laced undervacbe forced against the outer wall of the jar and form a tight joint;This effects a sealing of the jar so that the vacuum in the chamber maybereleased.

The curling of the vertical wall may be accomplished by any suitablecurling head such as a rotating head having a curling roll or a headhaving a die for simultaneously curling the entire vertical wall at thesame time.

It will be readily seen that the closure may quickly be removed bypiercing the tin cap to break the vacuum in the jar, and releasing thesplit ring through the, turning of the tongue 12 so as to release thesplit sections. The above closure, therefore, has the advantage that theparts may be assembled on the jar and held in the assembled positionduring the handling of the same. The contents of 'the jar may be placedunder vacuum and then the closure operated upon to form a perfect" sealwhich will hold said jar-under vacuum. The closure may be quicklyreleased by hand and without the use of tools merely by separating thesplit sections of the retaining ring, then piercing the cap. s

It is obvious that minor changes in the details of construction may bemade without.

aeoaeoe departing from the spirit of the invention as set forth in theappended cla m.

Having thus described my invention; what I claim as new and desire tosecure by LettersPatent is The combination with a jar having anoutwardly extending flange provided with a an inturned portion at itslower edge adapted 'to engage underneath the flange, said ring having aflange at its upper edge adapted to be rolled soas to clamp the capagainst the jar and press the paper lining tight dowry. upon the upperend of the jar.

In testimony whereof I aflix my signature in the presence 013 twowitnesses v LUCY E. NORTON, Ewecutfia: of the estate'ofEdwin Norton,

deceased.

Witnesses:

C. C. CONWAY,

m: E. Mailman.

